If you want to earn money through blogging then first step is to monetize your blog for earning because without monetization you dont earn money.
When you monetize your blog your website shows ads and then you can earn through ads and beginner bloggers make some mistakes for that reasons their blog never monetize.
Tips for successful in monetization:
1) Change your default theme
2) Don't copy,spin or rewrite others articles for post it to your blog
3) Don't promote anything related to violation, destruction,18+,online earning or apk's
4) Submit your blog for monetization when you publish atleast 25 articles and length of your articles must be atleast 1000 words
5) Avoid to use images from Google because it would be copyrighted, use images for your articles from pexels.com or pixabay.com etc because it provides non-copyrighted images